Understanding Disks: HDD vs SSD and Internal vs External Storage

Disks are a type of storage device that store data on a physical medium, such as a hard drive or a solid state drive (SSD). They are used to store files, programs, and other data that a computer needs to function. Disks can be internal, meaning they are installed inside the computer, or external, meaning they are connected to the computer via a cable or wirelessly.

What is the difference between a hard disk drive (HDD) and a solid state drive (SSD) ?

A hard disk drive (HDD) uses a mechanical arm to read and write data on a spinning disk, while a solid state drive (SSD) uses flash memory to store data. HDDs are slower and less reliable than SSDs, but they offer more storage for the price. SSDs are faster and more reliable, but they are also more expensive.

What is the difference between a internal and external disk ?

An internal disk is installed inside the computer, while an external disk is connected to the computer via a cable or wirelessly. Internal disks are typically faster and more reliable, but they take up space inside the computer. External disks offer more storage and can be easily moved between computers, but they may be slower and less reliable.